Abstract: Natural disasters not only bring huge economic losses to society, but also cause serious psychological trauma to victims. To address the negative emotions experienced by disaster victims, this paper proposes a disaster shelter scheme to ensure emotional health, aiming to explore design strategies and methods to alleviate negative emotions of victims in post-disaster temporary shelters. Through the investigation of individuals who have experienced natural disasters, combined with the particularity of post-disaster products, virtual reality (VR) equipment is suggested to study a wider user group. According to the Kano model, the priority of functional requirements is established for disaster shelter designing. Also, the internal space is designed and experimentally analyzed by evidence-based physiological sensors and VR devices. Combined with experimental data and user feedback, the subjective and objective effects of different scenarios on the effect of negative emotion intervention are discussed. Results show that the disaster shelter scheme proposed in this paper improves the negative emotions among occupants, with the combination environment of cool tone-high brightness-hard materials, cool tone-high brightness-soft materials and warm tone-low brightness-soft materials providing the best effect on improving negative emotions. This paper provides reference for the emotional health-related design of temporary placement products after disasters.

Key words: product design, disaster shelter design, emotional health, physiological sensors, virtual reality